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AngularJS has turned into a prominent choice for the web developers universally, which rushes to respond to updates and different interfaces and supports in building a comprehensive web application. Its utilization of dependency injection makes it simple to be modularized, tested and revamped upon. If you are looking at developing front-end solutions fast, with insufficient resources, robustness and high scalability, then AngularJS should be your choice. Due to its smooth learning, various resources accessible to learn AngularJS online. So, there are many resources available to learn AngularJS online.ĪngularJS is one of the most prominent languages utilized in front-end development. Since its release in 2009, AngularJS has been extensively used by multiple web developers for its comfortable extending of custom HTML tags and directives. It also includes the building of complex client-side applications. Open and edit `src/app/` then add this import of HttpClientModule that is part of import from 'rxjs' Īdd these Typescript class that intercepts error from the HttpRequest.AngularJS is an excellent Javascript framework that can be utilized to build robust and dynamic web applications. We just need to register it this Angular app. This module already included when creating a new Angular app. The Angular HttpClient has features of testability features, typed request and response objects, request and response interception, Observable APIs, and streamlined error handling. The Angular 8 HttpClient simplified the client HTTP API on the XMLHttpRequest interface exposed by browsers. You can choose one of it and make sure you have installed the required database (PostgreSQL or MongoDB) then you can clone that Node-Express REST API server and run from your local machine. Next, to prepare the remote REST API, we already have the source codes and tutorials for you with MongoDB or PostgreSQL. Now, the local JSON file is ready to use with your Angular HttpClient. "desc": "Liquid Retina HD display 6.1-inch (diagonal) all-screen LCD Multi-Touch display with IPS technology 1792-by-828-pixel resolution at 3:1 contrast ratio (typical)", "desc": "Super Retina XDR display, 5.8‑inch (diagonal) all‑screen OLED Multi‑Touch display, HDR display, 2436‑by‑1125-pixel resolution at 458 ppi 2,000,000:1 contrast ratio (typical)", "desc": "iPhone X 128GB Internal Memory, 8GB RAM, 6 Inch IPS Display",
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Open and edit `src/assets/data/smartphone.json` then add these lines of JSON data. For local JSON file, simply, create a new folder inside `src/assets`. Setup Local JSON File or Remote REST API Serviceįor this tutorial, we will use one of the Local JSON file or the remote REST API service that will consume or call by Angular HttpClient. Here's the Angular 8 default page look like. Using that "-open" parameters, will automatically open the Angular 8 in your default web browser. After finished, go to the newly created Angular 8 folder then run the Angular 8 app for the first time.
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That command will create a new Angular 8 app with the name `angular-httpclient` and pass all questions as default then the Angular CLI will automatically install the required NPM modules. sudo npm install -g create a new Angular 8 app using Angular CLI by type this command. First, we will install Angular CLI using this command in the terminal or Node.js command line.
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We will start this tutorial by creating an Angular 8 app using Angular CLI. HttpClient POST, PUT, and DELETE Request.Basic Local JSON or RESP API Request Example.Setup Local JSON File or Remote REST API Service.So, we will cover more details about consuming the REST API using Angular HttpClient and other required modules. As you see in almost Angular or MEAN stack tutorial in this site always uses REST API access. In this Angular 8 tutorial, we will show you a comprehensive step by step Angular 8 tutorial on consuming REST API using Angular HttpClient.